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maxLenAltEvenOdd.cpp
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#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define REP(i, n) FOR(i, 0, (n))
#define FOR(i, a, b) for(int i=(a); i<(b); i++)
typedef vector<ll> vl;
#define PB push_back
#define ios() ios::sync_with_stdio(false); cin.tie(0);
#define scan(a,n) for(ll i=0;i<n;i++) cin>>a[i];
#define print(a,n) for(ll i=0;i<n;i++) cout<<a[i]<<"\n";
#define test() ll t; cin>>t; while(t--)
#define endl "\n"
int main()
{
#ifndef ONLINE_JUDGE
freopen ("input.txt","r",stdin);
freopen ("output.txt","w",stdout);
#endif
ios()
ll n, curr=1, count=1;
cin>>n;
vl ar(n+1);
scan(ar,n)
FOR(i,1,n)
{
if((ar[i]%2==0 && ar[i-1]%2!=0) || (ar[i]%2!=0 && ar[i-1]%2==0))
{
curr++;
count = max(curr,count);
}
else
curr=1;
}
cout<<count<<endl;
return 0;
}
// ll n, flag=0, count=1;
// cin>>n;
// vl ar(n+1);
// scan(ar,n)
// if(ar[0]%2==0)
// flag=1;
// FOR(i,1,n)
// {
// if(flag==1)
// {
// if(ar[i]%2 == 0)
// count=1;
// else
// {
// count++;
// flag=0;
// }z
// }
// else
// {
// if(ar[i]%2 != 0)
// count=1;
// else
// {
// count++;
// flag=1;
// }
// }
// }
// cout<<count<<endl;